Nyob rau hauv ib puag ncig niaj hnub no, cov teeb meem dej phwj tuaj los ntawm kev txhim kho kev lag luam tau raug kho kom zoo hauv tsev thiab txawv teb chaws. Hais txog qhov no, peb yuav tsum hais txog qhov xwm txheej ntawm cov tshuaj flocculants uas tshem tawm xim hauv kev kho dej. Yeej, cov dej phwj uas tsim los ntawm ntau lub lag luam yuav tsum siv cov tshuaj flocculants uas tshem tawm xim. Yixing Cleanwater yuav qhia koj txog kev paub thiab kev siv hauv ntau qhov chaw sib txawv.
Muaj ntau hom polymer decolorizing flocculants siv dav hauv kev lag luam dej thiab dej phwj tuaj txawv teb chaws, ntawm cov no yog polyacrylamide (PAM) yog hom tseem ceeb ntawm decolorizing flocculant. Piv nrog cov inorganic ntsev flocculants ib txwm muaj, PAM, ua ib hom tshuaj kho dej tshiab, muaj ntau qhov zoo: yooj yim thiab yooj yim siv, cov nyhuv flocculation yog ntau dua li cov inorganic ntsev decolorizing flocculants ib txwm muaj; ceev flocculation thiab sedimentation, sludge dewatering efficiency siab; kev kho tshwj xeeb rau qee cov dej phwj tuaj; cov khoom siv yooj yim xav tau, qhov chaw me me; tus nqi kho qis; dej phwj tuaj yeem rov ua dua thiab rov siv dua, thiab lwm yam.
Daim ntawv thov ntawmPAM decolorizing flocculant nyob rau hauv ntau daim ntawv thov teb:
1. Daim ntawv thov hauv kev lag luam ntawv
Siv cov PAM uas muaj molecular hnyav ua cov flocculant uas tshem xim tawm tuaj yeem ua rau cov xim thiab lwm yam khoom hauv dej dawb ntau ntxiv thiab txo lawv cov kev poob. Ntxiv 0.25 ~ 0.5% PAM rau hauv cov pulp tuaj yeem ua rau cov dej hauv cov pulp ntau ntxiv 40 ~ 80 npaug, txo cov khoom khov hauv dej dawb li ntawm 66%, ua rau cov tshauv ntawm daim ntawv ntau ntxiv, ua rau cov xim khaws cia xws li av nplaum dawb ntau ntxiv 8 ~ 18%, thiab txuag tau 20 kg ntawm cov pulp ib tuj ntawm daim ntawv. Ntxiv mus, tom qab siv PAM, qhov turbidity ntawm cov dej dawb raug txo qis heev, txo cov pa phem ib puag ncig. Piv txwv li, cov khoom khov uas raug tshem tawm ntawm cov dej khib nyiab dawb nrog pH = 6.8 yog 3000ppm. Tom qab kho nrog PAM nrog qib hydrolysis ntawm 5 ~ 10%, qhov hnyav molecular ntawm 5.5 ~ 10 lab, thiab 500ppm ntawm txhuas sulfate, cov dej dawb tuaj yeem hloov mus ua kua tsis muaj xim thiab pob tshab, thiab cov khoom khov uas raug tshem tawm raug txo kom qis dua 50ppm.
2. Daim ntawv thov ntawm cov tshuaj flocculants decolorizing hauv kev kho dej
①Tiv thaiv kev scaling thiab descaling
Hauv kev lag luam dej thiab kev kho dej phwj tuaj, cov dej nyoos yuav tsum tau ua kom huv ua ntej. PAM decolorizing flocculants thiab inorganic coagulants feem ntau siv ua ke, uas tuaj yeem txo qhov kev siv cov inorganic coagulants, tiv thaiv kev thaiv thiab xeb ntawm cov khoom siv vim kev siv ntau dhau ntawm inorganic coagulants, thiab tiv thaiv kev tsim cov nplai. 37.5 feem ntawm PAM nrog qhov hnyav molecular qis dua 1 lab thiab 50 feem ntawm sodium tripolyphosphate yog siv los tsim cov nplai inhibitor, uas tuaj yeem tiv thaiv qhov nplai ntawm cov cua sov hloov pauv loj heev.
②Kev kho cov dej phwj hauv kev lag luam
3. Daim ntawv thov ntawm cov tshuaj flocculants decolorizing hauv kev kho dej khib nyiab hauv kev lag luam qab zib
Cov kua txiv qab zib uas rho tawm los ntawm lub tshuab nias los ntawm cov chaw tsim khoom qab zib feem ntau yog turbid thiab nws cov khoom sib xyaw kuj nyuaj heev. Yuav kom tau txais cov kua txiv qab zib huv, yuav tsum ntxiv cov tshuaj ua kom pom tseeb. Yav dhau los, cov tshuaj flocculants inorganic decolorizing feem ntau siv, tab sis nrog kev txhim kho ntawm kev lag luam qab zib, cov tshuaj flocculants inorganic decolorizing tsis tuaj yeem ua tau raws li qhov xav tau ntawm kev tsim khoom. Nyob rau hauv xyoo tas los no, kev siv PAM hauv kev lag luam qab zib tuaj yeem ua rau tus nqi sedimentation nce ntxiv 20 npaug.
Hauv kev xaus, thaum peb xaiv polyacrylamide PAM decolorization flocculant raws li qhov xwm txheej tiag tiag, peb yuav tsum xaiv nws raws li cov xwm txheej thov sib txawv thiab cov xwm txheej. Yog li ntawd, kev xaiv polyacrylamide kuj tseem ceeb heev.
Yog tias koj xav tau peb cov khoom, thov koj xav tiv tauj pebtiv tauj peb!
Lub sijhawm tshaj tawm: Tsib Hlis-27-2025